on February 2 a person deposited rs 10000 in savings account at 6% per anum the rate of interest was reduced to 5% on 28 June and it was raised to 51/2% on 9 September find the amount payable to the depsiter on 21 November.
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Answer:
Time= Feb+mar+Apr+May+June
=26+31+30+31+28
=146
S.I.= PRT/100
=10000×6×146 by 100×365
= 240
Time = June+July+aug+sep
=2+31+31+9
= 73
S.I. = PRT/100
= 10000×5×73 by 100× 365
= 100
Time = sep+Oct+Nov
= 21+31+21
=73
S.I. = PRT/100
=10000×11×73 by 100×2×365
= 110
Total of S.I. = 240+ 100+ 110= 450
A = P+I = 10000+450 = 10450 ans completed
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